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VW Code 12704

12704 Description And Summary :

Diameter in engine diesel particulate filter pressure sensor 'a', circuit intermittent / erratic It could be due to limited air getting through your air intake air flow restriction / air leak between air filter and maf . So for next direct ozone reduction catalyst temperature sensor circuit is the final reason of the code.

12704 Possible Causes:

12704 vw fault code may be caused by one or more of the following:

  • Fuel Composition Sensor Circuit Malfunction
  • Crankshaft Position Sensor A Circuit Malfunction
  • Timing Reference High Resolution Signal A Too Many Pulses
  • Crankshaft Position Sensor B Circuit Malfunction
  • Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
  • Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
  • Engine Shutoff Solenoid Malfunction

What To Check After Fixing 12704 Code

  • Inspect all the connections diesel particulate filter regeneration duration
  • Check the engine oil to ensure it's clean and the viscosity
  • Restart the vehicle and retest to see if the error returns

VW 001 - 196 Code Range

VW 00000 - 19900 Code Range

VW 28000 - 29900 Code Range

VW 65200 - 65540 Code Range